Insulator-holder.



H. C. HEFFNER.

INSULATOR HOLDER.

APPLIOATION FILED MAY 25, 1912.

Patented May 5,1914.

2 SHEET SHE T 1 I dllazuu V vm/bmeooeo 5 I H. C. HEPFNER.

INSULATOR HOLDER.

APPLICATION FILED MAY 25, 19124 1,095,860. Patented May 5, 1914.

2 sums-sum 2.

awe-Mo? z Cf ers, of which the following is a specification.

HERMAN C. HEFFNER, OF

MAR-TINSBURG, WEST VIRGINIA.

INSULATOR-HOLDER.

Specification of Letters Patent.

Patented May 5, 1914.

Application filed May 25, 1912. Serial No. 699,752.

To all 2012 am it may concern: 7

Be it lniown that I, I'IERMAN C. HEFFNER, a citizen of the United States, residing at .\l.-irtinsbur in the county of Berkeley and State of ll est irginia. have invented new and useful improvements in Insulator-Hold- This invent-ion relates to insulator sup ports and more particularly to-that type which are adapted to support the insulator upon'a cross arm.

()ne of the principal objects of the inven- (ion is to avoid diiliculties heretofore encountered in insulator supports, that of weakening the cross arm.

(ith the old type of locust supporting pins, was necessary to drill the cross arm, (has weakening; the same and in order to overcome this, it was necessary to use a cross arm having a considerably larger cross sectional area.

[t is the object of this invention not only to avoid this difiieulty, but to permit the use of a maller cross arm and at the same time, reinforcedhe same so as to prevent splitting and toassist in preventing warping of the arm.

A further object of the invention is the provision of a metallic insulator supporting device which is so constructed as to prevent breakage of the insulator by reason of the different. coeflicients of expansion between the metal and porcelain or glass.

further object of the invention is the provision of a simple and ellicient. device of this eluirzietcr which will .not only insure longevity of the ('l'() a rim but which will be equally as du able a the present. type of insulator support and far less liable to fracliar-t.

Further object of this. invention will appear Il. the foilmving spe 'iiiedescription is read in connection with the accompanying drawing. which forms a part of this applit'zilluil. Illltl in \\'lll:llZ-

Figure l is a perspective. view of the cross arm with the support attached thereto and with lll(()l(lill1ll' type of petlieoat insulat r mounted therein. Fig. 2 is a vertical sectional view tlierethrough. Fig. 3 is a per- -spc tive view of the mounting device removed. Fig.3 is a detail longitudinal sec-- tional view through a c: ...;s icshowing the modified form of brace holder. Fig. 5 is a perspective view of the brace holder removed. Fig. (i is a perspective view of a modified 4 form. Fig. 7 is an elevation thereof shown applied to a cross arm. Fig. 8 is a top plan view showin one form of coil or insulator receiving :-t(1W. Fig. 9 is a similar view of another form of insulator receiving screw. Fig. '10 is a side elevation of a wall insulator support.

Referring more particularly to the drawing. 1 represents anordinary cross tie and 2' the ordinary type of petticoat insulator now in common use. The mounting device is con-- strneted of a single strand of wire bent back upon itself intermediate its ends to produce a substantially rectangular loop 3 which is adapted to surround the in Figs. 1 and 2; The portionsoflthe strand beyond the second 4. and are then bent orcoilcd'around the portion 4' into spiral form, as shownat-5, the

cross .tie,"as shown loop are extended up sub-" stantially parallel to each 'other, as shown at.

terminal ends of the strand being extended laterally in opposite directions, as indicated at ti a d having eyes 7 formed at their ends to receive the fastening devices 8, here shown in the form of screws.

in the modified form shown in Figs. 4 and 3. the plate 9 has formed in its ends, suitable boxes 10 to receive the terminal or looped ends of the strand which, in this instance, are sprun; into the boxes, as shown. This plate is held do n upon the top of the cross arm by the lHN'IJi I' mounting device and is prevented from longitudinal movement by oppo sitely projecting spurs 11 which are adapted to ent r the crossarm, as shown. \Vhen the two parts or spirals. are brought together, as :-ii= in Fig. 2. the separate coils,thcreof, w ll interlock and form rigid screw which engages the threads 1. on th interior of the insulator 2. The act of tlmadin; the insulator on to the screw will tend to draw the separate coils together and to clamp the device around the cross arm. Thus. the cross arm will be reinforced and prevented from splitting.

Referring: to the modification shown in Figs. 6 and 7, the. mounting device is constriicled of separate strands of wires 13 and 14- pivotallyponnected together, as shown at a substantially.

15. and each being provided with a screw sired to put an insulator close to the pole, it would be necessary with the structure shown in Fig. l to remove all insulators or to slip them up and retie the wires thereon and then place the additional insulator on the outside. With this type, the pivoted parts are so arranged that they can be readily placed around the cross arm andthe coils 16.

rought together to receive the insulator.

The coils may be constructed'as in Fig. 8 with afiat side 19, in which case, the flat portions of opposite coils-only overlap each other the width of the material of which the coils are formed, while, if the coils are made in the form shown in Fig. 9, they will mesh with each other, as shown. The coil shown in Fig. 10 is constructed of a single strand of wire with loops formed intermediate its length, as shown at'20, to receive fastening devices and with its opposite legs converging for a predetermined distance and then extending at an angle as shown at 21, and

arranged along parallel lines. I The outer ends of the legs have the wire coiledil round them into insulator receiving screws 22, while the terminals of the coils have oppositely extended diagonal brace members 23 having eyes 24 for the reception of fastening devices. Thistype of device is here shown as secured to the side of a cross am, but it will be readily understood that it may be attached to a wall batten, to the side of a pole, or to a tree. i

.What is claimed is L'An insulator holder'compris'ing separated open coils of wire arranged to interengage and form an insulator receiving screw and integral means for securing the coils on a support which surrounds the support andrcinforces the same.

2. An insulator holder comprising separated open coils of wire arranged to interengage and form an insulator receivin screw of adjustable diameter. I 3. An insulator holder comprising separated open coils of'wire arranged to interengage to produce an'insulator supporting screw and means for securing the coils to a. support which surrounds the support and reinforces the same.

4. An insulator holder comprising separated open coils of wire arranged to interengage to produce an insulator supporting screw-and integral means connected to each coil and adapted to be drawn around a support for reinforcing the same upon application of an insulator to the coils.

.5. An insulator. holder comprising separated open coils'of wire arranged to adjustably inter-engage to produce an insulator supporting screw, integral extensions formed at one terminal of the coils, said extensions h'avin means for receiving fastening devices i0: connecting and holding the coils against longitudinal movement over a support and integral means connected to the opposite terminal of the coils and arranged to thereto and forreinforcing the support.

6. An insulator holder comprising a sincomplete loo'p formed intermediateits ends, open coils of wire formed aroundthe termiseparate open spirals arranged to inter-enscrew, together with means to 'connect the n'al movement of the coil over said support.

8. An insulator holder comprising supporting means and separate open coils of wire adj ustably inter-engaged to produce an insulator supporting screw, said coils being integrally connected to the supporting .means.

In testimo whereof I afiix my signature in presence 0 two witnesses. HERMAN C. HEFFNER. Witnesses: 1 WALTER W. TRAAL,

E. H. WELLER.

.gle strand of wire having a. substantially gage to produce an insulator supporting coils to a support which prevents longitudi-' surround the support for securing the coils nals of the loop and integral therewith, said terminals thereof coiled therearound to form 

